Carrier 40MVC, 38MVQ, 40MVQ, 38MVC User Manual

38MVC/40MVC 38MVQ/40MVQ Comfortt S e r i e s H i g h --- W a l l D u c t --- F r e e S p l i t S y s t e m Sizes 009 --- 024

Service Manual

TABLE OF CONTENTS

PAGE

SAFETY CONSIDERATIONS 1.........................

STANDARD FEATURES AND ACCESSORIES 2...........

SPECIFICATIONS -- COOLING ONLY 3..................

SPECIFICATIONS -- HEAT PUMP UNITS 4...............

DIMENSIONS 5......................................

SERVICE VALVE LOCATIONS 5........................

CLEARANCES 6.....................................

SYSTEM OPERATING ENVELOPE 7....................

ELECTRICAL DATA 7................................

WIRING 8...........................................

CONNECTION DIAGRAMS 9..........................

WIRING DIAGRAMS 10 -- 16...........................

REFRIGERATION CYCLE DIAGRAM 17.................

REFRIGERANT LINES 18.............................

SYSTEM EVACUATION AND CHARGING 19.............

CONTROL SYSTEM 20...............................

SYSTEM SAFETIES 20................................

3MINUTETIMEDELAY 20............................

COMPRESSOR OVERCURRENT PROTECTION 20 -- 21....

SEQUENCE OF OPERATION 21........................

MODES OF OPERATION 22 -- 24........................

TROUBLESHOOTING 25 -- 37..........................

APPENDIX 38 -- 43...................................

SAFETY CONSIDERATIONS

Improper installation, adjustment, alteration, service, maintenance, or use can cause explosion, fire, electrical shock, or other conditions which may cause death, personal injury, or property damage. Consult a qualified installer, service agency, or your distributor or branch for information or assistance. The qualified installer or agency must use factory-- authorized kits or accessories when modifying this product. Refer to the individual instructions packaged with the kits or accessories when installing.

Follow all safety codes. Wear safety glasses, protective clothing, and work gloves. Use quenching cloth for brazing operations. Have fire extinguisher available. Read these instructions thoroughly and follow all warnings or cautions included in literature and attached to the unit. Consult local building codes and National Electrical Code (NEC) for special requirements.

Recognize safety information. This is the safety--alert symbol When you see this symbol on the unit and in instructions or manuals, be alert to the potential for personal injury.

Understand these signal words: DANGER, WARNING, and CAUTION. These words are used with the safety--alert symbol. DANGER identifies the most serious h azards which will result in severe personal injury or death. WARNING signifies hazards which could result in personal injury or death. CAUTION is used to identify unsafe practices which may result in minor personal injury or product and property damage. NOTE is used to highlight suggestions which will result in enhanced installation, reliability, or operation.

ELECTRICAL SHOCK HAZARD

Failure to follow this warning could result in personal injury or death.

Before installing, modifying, or servicing system, main electrical disconnect switch must be in the OFF position. There may be more than 1 disconnect switch. Lock out and tag switch with a suitable warning label.

WARNING

INTRODUCTION

Section 1 of this Service Manual provides the necessary information to service, repair, and maintain the EEZ family of Puron air conditioners and heat pumps. Section 2 of this manual is an appendix with data required to perform troubleshooting. Use the Table of Contents to locate a desired topic.

MODEL NUMBER NOMENCLATURE

INDOOR UNIT

40 MVC 3--- 01

Fan Coil Unit

Unit Type MVC --- Co o l i n g On l y MVQ --- H e a t Pu m p

018

Nominal Capacity 009 --- 3 / 4 To n 012 --- 1 To n 018 --- 1 --- 1 / 2 To n 024 --- 2 To n s

---

Volt age

--- --- 3 0 V D C 1 --- 1 1 5 --- 1 --- 6 0 3 --- 208/230 ---1 ---60

38/40MVC, MVQ

A i r --- C o o l e d C o n d e n s e r

OUTDOOR UNIT

38 MVC 3--- 01

Unit Type MVC --- Co o l i n g On l y MVQ --- H e a t Pu m p

018

Nominal Capacity 009 --- 3 / 4 To n 012 --- 1 To n 018 --- 1 --- 1 / 2 To n 024 --- 2 To n s

---

SERIAL NUMBER NOMENCLATURE

Week of Manufacture

01 06

00001

Serial Number

Volt age 1--- 11 5 --- 1 --- 6 0 3--- 208/230 --- 1 ---60

Year of Manufacture

Manufacturing Site

STANDARD FEATURES AND ACCESSORIES

Ease Of Installation

Mounting Brackets S Low Voltage Controls S

Comfort Features

Microprocessor Controls S Wireless Remote Control S Automatic Air Sweep S Air Direction Control S Auto Restart Function S Cold Blow Protection On Heat Pumps S Turbo M o d e O n Si z e s 9K a n d 1 2 K S Auto Changeover On Heat Pumps S

Energy Saving Features

Sleep Mode S Stop/Start Timer S

Safety And Reliability

3MinuteTimeDelayForCompressor S Over Current Protection For Compressor S Indoor Coil Freeze Protection S Indoor Coil High Temperature Protection On Heat Pumps S Condenser High Temperature Protection On heat Pumps{ S Accumulator On Heat Pumps S

Ease Of Service And Maintenance

Cleanable Filters S Diagnostics S Liquid Line Pressure Taps S Suction And Discharge Pressure Taps (Sizes 18 and 24K) S

Application Flexibility

Low Ambient Controls ( --- 20˚F) A Condensate Pumps A Crankcase Heater A Wind Baffles F

Warranty

5 --- Year Compressor Warranty S 1 --- Parts Warranty S Compressor Extended Warranty Years 6 Thru 10 O All Parts And Labor Years 2 Thru 5 O All Parts And Labor Years 2 Thru 5, Compressor Years 6

Thru 10

{ Sizes 18k & 24k

Legend

SStandard A Accessory OOptional F Field Fabricated

INDOOR UNITS

On high wall fan coils, the condensate pump has a lift capability of 18 ft (5.5 m) or the discharge side with the pump mounted in the fan coil or 6 ft (1.8 m) on the suction side if the pump must be remote mounted. The pump mounts inside the unit with quick plug--in connections, and is recommended when adequate drain line pitch cannot be provided, or when the condensate must move up to exit.

NOTE: An external 115v power source will be required to run the pump on unit sizes 9k and 12k.

OUTDOOR UNITS

LOW AMBIENT KIT

The kit controls condenser fan cycling using a pressure switch. It is specifically designed to control fan--motor cycles in response to saturated condensing pressure. This device maintains a constant saturated condensing temperature of 100 _F ± 10 _F (37.78_C ±

--12.22 _C) at outdoor--air temperatures between 55 _F and --20 _F (12.78_C ± --12.22_C), and can be used on all outdoor units without changing the outdoor fan motor.

CRANKCASE HEATER

Available for units with rotary compressors. Heater clamps around compressor oil sump. Recommended for low-- ambient applications on sizes 9, 12 , 18, 24 and long line applications.

A07892

Fig. 1 – Condensate Pump

38/40MVC, MVQ

SPECIFICATIONS -- COOLING ONLY UNITS

System Model Number 5 3 M V C 0 0 9 --- --- --- 1 5 3 M V C 0 1 2 --- --- --- 1 5 3 M V C 0 1 2 --- --- --- 3 5 3 M V C 0 1 8 --- --- --- 3

System Voltage 115 V 115 V 208/230 208/230 Control Voltage 0 --- 1 2 P u l s e D C 0 --- 1 2 P u l s e D C 0 --- 1 2 P u l s e D C Pulse DC Capacity (Btuh) 9000 12000 12000 18000

System

SEER 13.0 13.0 13.0 13.0 Refrigerant Typ e R--- 410A Design Pressure (PSIG) 550 550 550 550 Metering Device Capillary Tube in Outdoor Unit Charge (lb) 2.3 2.9 3.0 4.4

Refrigerant

Type Rotary Model EA82X1C --- 1FZDU1 EA108X1C--- 1FZDU1 PA108X1C--- 3FZDU PA150X2C S--- 3KUU O i l C h a r g e ( P O E --- o z ) 11.8 11.8 11.8 25.4 Capacitor 45µF/250VAC 45µF/250VAC 35µF/370VAC 40µF/370VAC Rated Current (RLA) 7.5 9.9 5.2 7.3

Compressor

Locked Rotor Amp (LRA) 40 47 21 32.6 Rpm/CFM 900/1060 900/1090 900/1120 840/1470 Diameter (in) .. No. of Blades 15.8 … 3 15.8 … 3 15.8 … 3 18.1 … 3 Motor (hp) 0.102 0.102 0.102 0.224

Motor

Outdoor

Capacitor 6.5µF/260VAC 6.5µF/260VAC 2.5µF/450VAC 3µF/450VAC

Face A rea (sq. f t) 4.05 3.94 3.94 5.51

38/40MVC, MVQ

No. Rows 2 2 2 4

Fins per inch 17 17 17 18

Circuits 4 4 4 4

Outdoor Coil

Motor Watts/HP 20/.034 20/.034 20/.034 25/.044 Rpm/Cfm (High) 1250/325 1270/425 1270/425 1070/630 Rpm/Cfm (Medium) 1000/260 1100/365 1100/365 1000/570 Rpm/Cfm (Low) 800/190 1000/340 1000/340 960/500

Indoor Motor

Blower Diameter … Length (in) 3.84 … 25.87 4.17 … 25.2 4.17 … 25.2 4.21 … 37.6 Face A rea (sq. f t) 2.15 2.54 2.54 4.36 No. Rows 2 2 2 2

Coil

Fins per inch 19.5 19.5 19.5 19.5

Indoor

Circuits 2 3 3 6 Connection Type Flare Liquid (Mix Phase) (in) OD 1/4” 1/4” 1/4” 1/4” Vapor Line (in) OD 3/8” 1/2” 1/2” 1/2” Condensate Drain (in) .65 (OD) .53 (ID) .65 (OD) .53 (ID) .65 (OD) .53 (ID) .65 (OD) .53 (ID)

Lines

Maximum Length (ft) 65 65 65 100

Refrigerant

Max Lift (Fan Coil Above) (ft) 35 35 35 50 Max Drop (Fan Coil Below) (ft) 35 35 35 50

SPECIFICATIONS -- HEAT PUMP UNITS

System Model Number 5 3 M V Q 0 0 9 --- --- --- 1 5 3 M V Q 0 1 2 --- --- --- 1 5 3 M V Q 0 1 2 --- --- --- 3 5 3 M V Q 0 1 8 --- --- --- 3

System Voltage 115 V 115 V 208/230 208/230 Control Voltage 0 --- 1 2 P u l s e D C 0 --- 1 2 P u l s e D C 0 --- 1 2 P u l s e D C Pulse DC Capacity (Btuh) 9000 12000 12000 18000

System

SEER 13.0 13.0 13.0 13.0 HSPF 7.7 7.7 7.7 7.7 Refrigerant Typ e R--- 410A

Design Pressure (PSIG) 550 550 550 550

Metering Device Capillary Tubes in Outdoor Unit

Charge (lb) 2.35 3.0 3.0

Refrigerant

Compressor

Locked Rotor Amp (LRA) 40 47 21 32.6

Rpm/CFM 900/1060 900/1090 900/1120 840/1470

Diameter (in) .. No. of Blades 15.8 … 3 15.8 … 3 15.8 … 3 18.1 … 3

Motor (hp) 0.102 0.102 0.102 0.224

Capacitor 6.5µF/260VAC 6.5µF/260VAC 2.5µF/450VAC 3µF/450VAC

Outdoor Motor

Face A rea (sq. f t) 4.05 3.94 3.94 5.51

No. Rows 2 2 2 4

Fins per inch 17 17 17 18

Circuits 4 4 4 4

Outdoor Coil

Motor Watts/HP 20/.034 20/.034 20/.034 25/.044 Rpm/Cfm (High) 1250/325 1270/425 1270/425 1070/630 Rpm/Cfm (Medium) 1000/260 1100/365 1100/365 1000/570

Motor

Indoor

Rpm/Cfm (Low) 800/190 1000/340 1000/340 960/500 Blower Diameter … Length (in) 3.84 … 25.87 4.17 … 25.2 4.17 … 25.2 4.21 … 37.6 Face A rea (sq. f t) 2.15 2.54 2.54 4.36 No. Rows 2 2 2 2

Coil

Fins per inch 19.5 19.5 19.5 19.5

Indoor

Lines

Refrigerant

Max Lift (Fan Coil Above) (ft) 35 35 35 50 Max Drop (Fan Coil Below) (ft) 35 35 35 50

38/40MVC, MVQ

DIMENSIONS -- INDOOR

Model Size

9K 32.09 (815) 11.02 (280) 7.68 (195) 12K 35.67 ( 906) 11.26 (286) 9.25 (235) 18K 49.21 (1250) 12.80 (325) 9.06 (230) 24K 49.21 (1250) 12.80 (325) 9.06 (230)

in. (mm)

DIMENSIONS -- OUTDOOR

A07336

in. (mm)

Weight lb (kg)

24.2 (11)

33.0 (15)

55.0 (25)

38/40MVC, MVQ

Model Size

9K 30.71 (780) 21.26 (540) 21.61 ( 549) 11.81 (300) 10.87 (276) 12K 29.92 (760) 23.23 (590) 20.87 (530) 12.40 (315) 11.42 (290) 18K 33.07 (840) 27.36 (695) 22.05 (560) 14.17 (360) 13.19 (335) 24K 31.16 (893) 33.86 (860) 23.11 (588) 13.98 (355) 13.11 (333)

Air Flow

in. (mm)

SERVICE VALVE LOCATI ONS

in. (mm)

12K

A07337

in. (mm)

18K

in. (mm)

24K

Weight lb (kg)

Cooling Only

77.0 (35) 79.2 (36)

85.8 (39) 90.2 (41)

125.4 (57) 125.4 (57)

159.5 (72) 160.6 (73)

Weight lb (kg)

Heat Pumps

Service Valve Locations

J 3.46 (88) 3.19 (81) 3.46 (88) 4.02 (102) K 3.46 (88) 5.63 (143) 3.62 (92) 6.57 (167)

12K

in. (mm)

18K

in. (mm)

A07376a

24K

in. (mm)

CLEARANCES -- INDOOR

(0.13m)

min.

6" (0.15m) min.

(1.8m)

Fig. 2 – Indoor unit clearance

(0.13m)

min.

A07891

CLEARANCES -- OUTDOOR

UNIT 9k and 12k in. (mm)

A 24 (610)

B 24 (610) C 24 (610)

D 4 (102) E 12 (305)

Fig. 3 – Outdoor Unit Clearance

38/40MVC, MVQ

Air-inlet

Air-outlet

A07894

18k and 24k in. (mm)

24 (610) 36 (914) 24 (610) 12 (305) 12 (305)

SYSTEM OPERATING ENVELOPE

53MVC/MVQ System Operating Envelope Chart

100

110

120

-10 0 10 20 30 40 50 60 70 80 90 100 110 120 130 140

Outdoor Temperature (ºF)

Indoor Temperature (ºF)

-40-35-30-25-20-15-10-5 0 5 1015202530354045505560

Outdoor Temperature (ºC)

Indoor Temperature (ºC)

Cooling

Continuous Operation

Heating Continuous Operation

85º 62ºF

55º

75ºF

55ºF

5ºF

80ºF

125º

38/40MVC, MVQ

Use low ambient control if the unit will operate in cooling at ambient conditions below 55_F (12.78_C).

Fig. 4 – System Operating Enevelope

ELECTRICAL DATA

OPERATING

UNIT

SIZE

*Permissible limits of the voltage range at which the unit will operate satisfactorily

LEGEND FLA --- Fu l l L o a d A m p s LRA --- L o c k e d R o t o r A m p s MCA - -- Minimum Circuit Amps RLA ---RatedLoadAmps

VOLTAGE*

MAX/MIN V O L T S --- P H --- H Z RLA LRA FLA HP W VOLTS FLA HP W

009

012 9.9 47 1.18 0.044 25 15 25

012

018 7.3 32.6 0.78 0.224 53

024 9.7 34.8 0.62 0.218 100 0.39 0.112 50 14 25

127/104 1 1 5 --- 1 --- 6 0

253/187 208/230---1 ---60

COMPRESSOR OUTDOOR FAN INDOOR FAN

7.5 40

5.2 21 0.38 0.116 36 35 DC 1.18 0.044 25 9 15

0.60 0.102 23 35 DC

208/230---1---60

1.1 0.034 20 12 20

0.26 0.075 31 11 20

A08180

MCA

MAX

FUSE/CB

AMP

WIRING

The main power is supplied to the outdoor unit. The field supplied connecting cable from the outdoor unit to indoor unit consists of four wires and provides the power for the indoor unit as well as the communication signal between the outdoor unit and indoor unit.

Voltage drop on the connecting cable should be kept to a minimum. Use cable size and max length below:

18 AWG 50 ft. (16 m) 16 AWG 100 ft. (33 m)

CONNECTION DIAGRAMS

CONNECTING CABLE

CONTROL

CONNECTING CABLE

CONTROL

38/40MVC, MVQ

Notes:

1. Do not use thermostat wire for any connection between indoor and outdoor units.

2. All connections between indoor and outdoor units must be as shown. The connections are sensitive to polarity.

3. On the 18k and 24k units, the “S” terminal “CONTROL” output is pulse DC with a potential AC voltage shock hazard.

Fig. 5 – Connection Diagrams

A07654

38/40MVC, MVQ

Fig. 6 – Wiring Diagram 38MVC009------ 1 W/ 40MVC009-- -- --1

WIRING DIAGRAMS

38/40MVC, MVQ

Fig. 7 – Wiring Diagram 38MVC012------ 1 W/ 40MVC012-- -- --1

WIRING DIAGRAMS (CONT.)

38/40MVC, MVQ

Fig. 8 – Wiring Diagram 38MVC012------ 3 W/ 40MVC012-- -- --3

WIRING DIAGRAMS (CONT.)

38/40MVC, MVQ

Fig. 9 – Wiring Diagram 38MVC018------ 3 W/ 40MVC018-- -- --3

WIRING DIAGRAMS (CONT.)

38/40MVC, MVQ

Fig. 10 – Wiring Diagram 38MVQ009------ 1 W/ 40MVQ009-- -- --1

WIRING DIAGRAMS (CONT.)

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